HydroBASINS lev08 watershed · #2080498660
Bassin de la Loire
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Maine-et-Loire
Sub-basin area
147km²
Upstream area
108 656,4km²
Discharge
960,19m³/s
Mean elev.
51m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
1 dept-equivalent regions (GADM L2)
- 147.4 km²100.0% of basin
21 communes (GADM L5)Available for FRA, RWA
- Rochefort-sur-Loire26.05 km²91% commune
- Savennières22.04 km²100% commune
- La Possonnière17.84 km²95% commune
- Denée15.84 km²99% commune
- Bouchemaine15.45 km²74% commune
- Mozé-sur-Louet14.99 km²58% commune
- Saint-Martin-du-Fouilloux7.19 km²49% commune
- Faye-d'Anjou5.38 km²17% commune
- Saint-Jean-de-Linières5.30 km²59% commune
- Beaulieu-sur-Layon4.07 km²31% commune
- Chalonnes-sur-Loire3.66 km²10% commune
- Saint-Georges-sur-Loire2.91 km²8% commune
- Saint-Aubin-de-Luigné1.68 km²11% commune
- Béhuard1.65 km²100% commune
- Mûrs-Erigné1.29 km²7% commune
- Beaucouzé0.61 km²3% commune
- Chaudefonds-sur-Layon0.51 km²3% commune
- Sainte-Gemmes-sur-Loire0.44 km²3% commune
- Saint-Léger-des-Bois0.35 km²2% commune
- Saint-Jean-de-la-Croix0.14 km²7% commune
- Soulaines-sur-Aubance0.05 km²0% commune
11 intersecting protected areas
Vallée de la Loire de Nantes aux Ponts-de-Cé et ses annexes
IUCN Not ReportedSpecial Protection Area (Birds Directive)
26.62 km² overlap
Vallée de la Loire de Nantes aux Ponts-de-Cé et ses annexes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
24.13 km² overlap
Regional Nature Reserve
1.00 km² overlap
Special Areas of Conservation (Habitats Directive)
0.22 km² overlap
Basses vallées angevines et prairies de la Baumette
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.22 km² overlap
Basses Vallées Angevines
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.02 km² overlap
La mine et le chevalement des Malécots
IUCN Not ReportedGeotope Protection Order
0.01 km² overlap
Geotope Protection Order
0.01 km² overlap
Carrière du Roc
IUCN Not ReportedGeotope Protection Order
0.01 km² overlap
2 more protected areassorted by overlap area
Carrière du Roc
IUCN IVGeotope Protection Order
0.01 km² overlap
Biotope Protection Order
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 568 distinct species · 48 520 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de la Loire : 25 espèces + 4 bulles famille, 57 interactions GloBI documentées sur 2 types (connectance 14.0%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,5°C
Annual rain
666mm
Moisture idx (CMI)
-0,23
Runoff
240mm/an
PET
862mm
AET
559mm
Mean slope
1,5°
Water table
193cm
Forest
1%
Crops
53%
Urban
2%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)